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Finding the Fourth Proportional to 354,530.93, 531,715.29 and 101,809.41

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Solution

The fourth proportional to 354,530.93, 531,715.29 and 101,809.41 is: 152,690.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,530.93 : 531,715.29 = 101,809.41 : x
  2. Step 2: Convert to fraction form
    354,530.93/531,715.29 = 101,809.41/x
  3. Step 3: Cross multiply
    354,530.93x = 531,715.29 × 101,809.41
  4. Step 4: Simplify right side
    354,530.93x = 54,133,617,587.16
  5. Step 5: Solve for x
    x = 54,133,617,587.16/354,530.93
  6. Step 6: Final answer
    x = 152,690.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.